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Q81. Which two prefixes would summarize the networks shown below? (Choose two.)
192.168.1.0/24 192.168.2.0/24 192.168.3.0/24
A. 192.168.0.0/23
B. 192.168.0.0/22
C. 192.168.0.0/24
D. 192.168.0.0/21
Answer: B,D
Q82. What are two benefits of the modular design of the Junos OS? (Choose two.)
A. Each module uses application-specific integrated circuits (ASICs).
B. Each module runs in its own protected memory space.
C. Each module can be individually restarted.
D. Each module is supported across all Junos platforms.
Answer: B,C
Q83. Which two commands allow you to return to a previous version of software on the device? (Choose two.)
A. request system software add
B. request system software downgrade
C. request system software replace
D. request system software rollback
Answer: A,D
Q84. When attempting to view the OSPF routes in the routing table, you issue the command show route table inet.3 but no OSPF routes are displayed.
What is the problem?
A. The OSPF routes are located in the inet4.0 routing table.
B. The OSPF routes are located in the inet.0 routing table.
C. The OSPF routes are located in the inet.2 routing table.
D. The OSPF routes are located in the inet4.3 routing table.
Answer: B
Q85. Which command will allow you to quickly determine the administrative status of all interfaces on a Junos device?
A. show interfaces status
B. show interfaces summary
C. show interfaces terse
D. show interfaces admin
Answer: C
Q86. Which statement is true about logical units?
A. Logical units are similar to VLANs used by other vendors.
B. A logical unit is required for transit interfaces.
C. Frame Relay encapsulation supports one logical unit.
D. Link speed and duplex are configured in the logical unit properties.
Answer: B
Q87. Which J-Web tab do you use to add licenses to the device?
A. "Configure"
B. "Troubleshoot"
C. "Monitor"
D. "Maintain"
Answer: D
Q88. By default, if equal-cost paths exist for the same destination, which action will the router take?
A. Drop half the traffic.
B. Make a copy of the traffic and send it to both destinations.
C. Load-balance traffic between the available paths.
D. Randomly select one of the available paths to send traffic.
Answer: D
Q89. You have been asked to configure a login class that will permit its users to view and edit the configuration. The class should allow a user to view the entire configuration, but only to edit the interfaces, routing-options, and protocols hierarchies.
Which configuration accomplishes this login class?
A. permissions [ view-configuration clear network view ];
allow-configuration "(interfaces) | (routing-options) | (policy-options) | (protocols)";
B. permissions [ view-configuration clear network view ];
allow-commands "(configure)";
C. permissions [ view-configuration clear network view ];
allow-commands "(configure)";
allow-configuration "(interfaces) | (routing-options) | (protocols)";
D. permissions [ clear network view ];
allow-commands "(configure)";
allow-configuration "(interfaces) | (routing-options) | (protocols)";
Answer: C
Q90. Which command gracefully shuts down the Junos OS?
A. request system reboot
B. request system logout
C. request system halt
D. restart gracefully
Answer: C
